Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
its the acronym for " Good to know", it can be used in terms of sarcasm or actuality
Valencia: your face looks odd
Rose:Gtk
by Mrz.Harper13 June 11, 2010
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3
Good to know. An easy, quick way to say a common phrase; often over email or text messaging. Similar to FYI, BTW, etc.
"I'll be in town in 2 weeks!" "GTK! Hit me up when you're around."
by efficiencyqueen December 18, 2013
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5
good to know

--said when someone say something that is good to know
GTK!
by sexysimba August 11, 2011
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6
Short for "Get the Keg".

Used when someone is about to do something so stupid that you don't even want to remember.
Retard: Dude, I'm gunna light my car on fire!!
McRetard: Ahh god gtk.
by De Vil August 23, 2009
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